Oo
surname · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
/oʊoʊ/(machine-generated) pronunciation, model-generated
Oo is a surname written in the Latin script, with more bearers in Myanmar (Burma) than in any other country, where it is the 4th most common surname.
- MMMyanmar (Burma)≈1 in 118(inferred from the name graph)
- SGSingapore≈1 in 4.3K
- MYMalaysia≈1 in 7.2K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Oo itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- Myanmar (Burma) (inferred from the name graph)
- 2 (measured from records)
- Sources
- 186 (measured from records)
- ≈1 in 118 (inferred from the name graph)
≈480,000 people, est.
recorded for this name
Highest-authority source
Myanmar (Burma), est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Oo counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| MM Myanmar (Burma) | #4 | ≈480,000 est. | ≈1 in 118 | listed | Oo | 120 |
| US United States | — | 18,285as Oh | 1 in 18K | 19K | Oo | 186 |
| CN China | — | ≈5,000 est. | ≈1 in 277K | — | Oo | 13 |
| MY Malaysia | #344 | ≈4,500 est. | ≈1 in 7.2K | — | Oo | 47 |
| SG Singapore | #370 | ≈1,400 est. | ≈1 in 4.3K | — | Oo | 63 |
| NO Norway | — | 860as Os | 1 in 6.4K | 860 | — | 21 |
| FI Finland | — | 127 | 1 in 44K | 127 | — | 7 |
Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; SSB — Navnesøk (name-search service, living population); DVV — Nimipalvelu (Finnish name service, per-name lookup). Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Other recorded senses(measured from records)
Oo is also recorded in 6 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In cdo, as below. an OO startled and doubting, (chaukngauk). EB i a conjunction, and, moreover, tt but, still, also, in addition, AlE & stop a hit, stop. As joy to you
as a wordDictionary of the Foochow Dialect
In cdo, WHE a Be Sx Tate x Paid 3 pleased, delighted
as a wordDictionary of the Foochow Dialect
In cdo, huong) a : Biers: Hate HE X taste, relish
as a wordDictionary of the Foochow Dialect
In Estonian, The name of the Latin-script letter O/o.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In kne, payment for pasing (eg. money, palay)
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In English, (Ω, ω) The Greek letter omega.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Notable people with this name(measured from records)
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
How to address them(machine-generated)
Evidence(measured from records)
Attested in 20 sources across 10 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 3.5K | #9,035 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 1.6K | #17,565 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 519 | #39,824 |
| FI Finland | DVV — Nimipalvelu (Finnish name service, per-name lookup) | — | 127 | #10,643 |
| NO Norway | SSB — Navnesøk (name-search service, living population) | — | 86 | #17,313 |
| FI Finland | DVV — Sukunimitilasto (Finnish surnames register) | — | 22 | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 2
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- How do you pronounce Oo?
- A machine transcription gives /oʊoʊ/ (IPA) for Burmese.
- In which country does Oo have the most bearers?
- Mondonomo estimates about 478 thousand people named Oo in Myanmar (Burma), more than in any other country we hold, where it is most often spelled oo.
- How common is the name Oo?
- In Finland, the national register counted 127 people named Oo, about 1 in 44 thousand residents.
- How common is Oo compared with other names?
- In Myanmar (Burma), Oo is the 4th most common surname of 12,945 surnames recorded there.
What do you want to know about Oo?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/ooThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Oo” — the 4th most common surname in Myanmar (Burma). Data snapshot 2026-10-10.